moxy_token/lit/
bool.rs

1use crate::lex::Cursor;
2use crate::lit::Lit;
3use crate::{Ident, LexError, Scan, Span, Spanner};
4
5/// A parsed Rust bool literal token.
6#[derive(Debug, Clone)]
7#[cfg_attr(feature = "serde", derive(serde::Serialize), serde(into = "String"))]
8pub struct LitBool {
9    value: bool,
10    span: Span,
11}
12
13impl LitBool {
14    #[inline]
15    pub fn new(value: bool, span: Span) -> Self {
16        Self { value, span }
17    }
18
19    #[inline]
20    pub fn value(&self) -> bool {
21        self.value
22    }
23
24    #[inline]
25    pub fn repr(&self) -> &str {
26        if self.value { "true" } else { "false" }
27    }
28
29    #[inline]
30    pub fn span(&self) -> Span {
31        self.span
32    }
33
34    #[inline]
35    pub fn set_span(&mut self, span: Span) {
36        self.span = span;
37    }
38}
39
40impl PartialEq for LitBool {
41    fn eq(&self, other: &Self) -> bool {
42        self.value == other.value
43    }
44}
45
46impl Eq for LitBool {}
47
48impl std::hash::Hash for LitBool {
49    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
50        self.value.hash(state);
51    }
52}
53
54impl std::fmt::Display for LitBool {
55    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
56        f.write_str(self.repr())
57    }
58}
59
60impl Spanner for LitBool {
61    fn span(&self) -> Span {
62        self.span
63    }
64}
65
66impl From<LitBool> for Lit {
67    fn from(value: LitBool) -> Self {
68        Self::Bool(value)
69    }
70}
71
72impl Scan for LitBool {
73    fn scan(cursor: Cursor<'_>) -> Result<(Cursor<'_>, Self), LexError> {
74        let (cursor, ident) = Ident::scan(cursor)?;
75
76        if !ident.is_raw() && (ident.text() == "true" || ident.text() == "false") {
77            Ok((cursor, Self::new(ident.text() == "true", ident.span())))
78        } else {
79            cursor.error().message("expected bool literal").into()
80        }
81    }
82}
83
84#[cfg(feature = "serde")]
85impl From<LitBool> for String {
86    fn from(value: LitBool) -> Self {
87        value.repr().to_string()
88    }
89}
moxy_token/lit/bool.rs

moxy_token/lit/
bool.rs
